In this paper, the principle of cathodic protection is analyzed, and an oil transmission station as an example, the regional cathodic protection design idea selection and implementation process were explored. The protected body in the oil transmission station has a large demand for complex current distribution, the forced current cathodic protection law was selected in the initial design of the station construction. However, due to the complex cross structure of pipelines in the station, there are blind spots that cannot be protected by the forced current method. Therefore, sacrificial anode is selected as auxiliary protection to realizes double protection, so that the current potential meets the design requirements, so that the equipment facilities and pipelines in the oil transmission station achieve the best protection effect.

大型外浮顶储罐作为原油储存必不可少的关键设备,但近年来储罐部分附件由于设计缺陷、建设质量不高、使用维护不到位等多个因素的影响,造成储罐使用过程中出现附件设施故障、辅助设施功能失效等问题,储罐管理稍有不慎就酿成重大事故,给人们的生命财产造成破坏和损失,对储罐安全管理和平稳运行方面带来了极大的压力.

某原油输油管道自运行10年以来,由于长输管道干线截断阀及进站阀门内漏更换、干线管道缺陷换管等原因,致使干线管道动火作业次数逐年增加.因动火作业工艺及安全风险管控的要求,需对阀室与阀室之间、阀室与场站之间的数十公里管道内注入大量氮气置换,但由于管道内大量氮气的存在,给大型原油储罐含气油品安全接收带来了极大的影响,稍有不慎就酿成重大事故,给人们的生命财产造成破坏和损失.